Solved

Using MultiSelect in ListBox

Posted on 1997-11-26
6
1,297 Views
Last Modified: 2010-04-04
I've got a FileListBox and a regular ListBox. I've got MultiSelect set to true in the FileListBox. I simply want to be able to select multiple files from the FileListBox and when I click the RIGHT mouse button, have those files go into my ListBox. I've got the right mouse button click event thing figured out, but when I select multiple files from my FileListBox and perform the action, all I get in my ListBox is the last file selected, not all of them like I want. Here's my code so far:

procedure TForm1.FileListBox1MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  if Button = mbRight then
  begin
    ListBox1.Items.Add(FileListBox1.FileName);
  end;
end;

.. So how can I add ALL the filenames I select to my ListBox, not just the last one of the bunch selected? What am I missing here?

Thanks,
   Shawn Halfpenny
   drumme59@sprint.ca
0
Comment
Question by:aztec
  • 4
  • 2
6 Comments
 
LVL 1

Accepted Solution

by:
anilms earned 50 total points
ID: 1352024
Well, you missed out two things - you should check for the SelCount and then you must iterate through the Source list, check whether it is selected and if it has been selected, add it to the Destination list.

I give an example below where a multiselect from a ListBox to a Memo is made possible through press of a button. Have the joy of making it work with a file list :

procedure TForm1.Button1Click(Sender: TObject);
var i:integer;
begin
     {Checking whether a multiselect has been performed}
     if ListBox1.SelCount>1 then
     for i:=0 to ListBox1.Items.Count-1 do
         if ListBox1.Selected[i]
             then Memo1.Lines.Add(ListBox1.Items[i]);

end;

0
 

Author Comment

by:aztec
ID: 1352025
Hello Anilms...
  Thanks for leaving me the joy of getting it to work with a file list... I couldn't. The only problem is I'm having trouble using the 'FileName' property to add the fully qualified filename to my listbox. Here's what I've got:

if Button = mbRight then
  begin
    if FileListBox1.SelCount > 1 then
       for i:=0 to FileListBox1.Items.Count-1 do
           if FileListBox1.Selected[i] then
   ListBox1.Items.Add(FileListBox1.items[i].FileName);
  end;

..This doesn't work. It doesn't like the 'FileName' after 'items[i]'. I NEED to have the fully qualified filename and pathname in the ListBox, so it would appear I need to use the 'FileName' property in some way....but how??

Thanks,
   Shawn Halfpenny
0
 
LVL 1

Expert Comment

by:anilms
ID: 1352026
Quite simple if you want the full path - this is what you do :

ListBox1.Items.Add(FileListBox1.Directory+FileListBox1.Items[i])

If you add the directory property, you get the full path. If you have still further doubts, email me at anilms@justsystem.co.jp
0
What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

 
LVL 1

Expert Comment

by:anilms
ID: 1352027
Ps : I missed out a '\'.

ListBox1.Items.Add(FileListBox1.Directory+'\'+FileListBox1.Items[i])
0
 

Author Comment

by:aztec
ID: 1352028
anilms...
   Did you get my e-mail from earlier today? Your suggestion is not quite right. It puts two '\' wheever you select files from a root directory like C:\. How to solve this?

Regards,
  Shawn Halfpenny
  drumme59@sprint.ca
0
 
LVL 1

Expert Comment

by:anilms
ID: 1352029
There is a way out. Just check what is the last character in FileListBox.Directory. If it is not a '\', then add it.

if FileListBox1.Directory[length(FileListBox1.Directory)]<>'\' then
 FileListBox1.Directory := FileListBox1.Directory+'\';

0

Featured Post

Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

Join & Write a Comment

Suggested Solutions

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now